diff --git a/api/@ohos.net.connection.d.ts b/api/@ohos.net.connection.d.ts
index 3ff974a7558c559153b9f2c6c1ff02df4843297e..491c670a81387b4715ddde0cf4b16ffd9a6263ad 100644
--- a/api/@ohos.net.connection.d.ts
+++ b/api/@ohos.net.connection.d.ts
@@ -272,9 +272,6 @@ declare namespace connection {
     prefixLength: number;
   }
 
-  /**
-   * @since 7
-   */
   export interface NetAddress {
     address: string;
     family?: number; // IPv4 = 1; IPv6 = 2, default is IPv4
diff --git a/api/@ohos.telephony.observer.d.ts b/api/@ohos.telephony.observer.d.ts
index 8193aca0556d6a93da396099949fda566c6e06a1..29d749abd6a8e8c2cf0ba283b826bcc701e223d2 100644
--- a/api/@ohos.telephony.observer.d.ts
+++ b/api/@ohos.telephony.observer.d.ts
@@ -107,6 +107,9 @@ declare namespace observer {
   function on(type: 'cellularDataConnectionStateChange', options: { slotId: number },
     callback: Callback<{ state: DataConnectState, network: RatType }>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'cellularDataConnectionStateChange',
     callback?: Callback<{ state: DataConnectState, network: RatType }>): void;
 
@@ -123,6 +126,9 @@ declare namespace observer {
   function on(type: 'cellularDataFlowChange', options: { slotId: number },
     callback: Callback<DataFlowType>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'cellularDataFlowChange', callback?: Callback<DataFlowType>): void;
 
   /**
@@ -156,6 +162,9 @@ declare namespace observer {
   function on(type: 'simStateChange', callback: Callback<SimStateData>): void;
   function on(type: 'simStateChange', options: { slotId: number }, callback: Callback<SimStateData>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'simStateChange', callback?: Callback<SimStateData>): void;
 
   /**